Imaging Research, Sunnybrook Health Sciences Centre, Toronto, CanadaDepartment of Medical Biophysics, University of Toronto, Canada

CAD Modelling for the RK-100 Positioning System

Ernest Yim, Syed Haider

Introduction RK-100

• “MRI-compatible image-guided focused ultrasound system ”•  consists of:

• a computer-controlled high-precision three-axis• a high-power focused ultrasound transducer

• “enables delivery of focused ultrasound energy to precise locations in soft tissue”

(http://www.fusinstruments.com/system.html)

Organizing and Conventions

• make the system reproducible• organizing into parts and assemblies (part no, description)• finding the specifics (material, manufacturer, manufacturer’s no)• templates for FUS parts and assemblies

Modelling and Mating

• Solidworks• most of the parts were for the London system, so…

• missing parts • some parts started off as two, but are now one• some started as one, but are now two• parts needed to be updated to current design (holes, dimensions, etc)

• parts needed to be mated correctly• 15 assemblies, 120 different parts (including fasteners)• fasteners needed to be added (all 416 of them)

Drawings

• new templates (linked properties)• what dimensions to add and how to add them• 63 drawings

Summary

• design and manufacturing process• Solidworks ... working with a slow computer• different versions of Solidworks

• side project• power meter calibration

• guide available in fusdisk

Work computer…What it should look like…

Acknowledgements

I would like to thank everyone in the C7 Lab

And especially,• Dr. Kullervo Hynynen• Anthony Chau• Syed Haider• Jeremy Bluvol• Sean Ouckama